An IR image input section inputs an IR image of printed matter P1, using IR light having a near-infrared wavelength. The split MAC layer system comprises an upper MAC portion wherein the upper MAC portion is dependent on a MAC protocol, a lower MAC portion wherein the lower MAC portion is independent of the MAC protocol, and wherein the upper MAC portion communicates information to the lower MAC portion using an information structure including an action pointer. The internal reinforcement has notches on its side profiles so that, level with the notches, the injected core passes through it in order to at least partially occupy the volume defined between the internal reinforcement and at least one of the two outer layers. The internal portion of the built in nursing bra is formed by a soft cup frame attached at the bottom to an elastic chest band and attached at the top to the front of the shoulder straps.